/// <summary>
 /// </summary>
 /// <param name="set">The collection of IAtomContainer objects</param>
 /// <seealso cref="AtomContainerSetManipulator"/>
 /// <returns>The total charge on the collection of molecules</returns>
 public static double GetTotalCharge(IChemObjectSet <IAtomContainer> set)
 {
     return(AtomContainerSetManipulator.GetTotalCharge(set));
 }
        public void TestGetTotalCharge_IAtomContainerSet()
        {
            var charge = AtomContainerSetManipulator.GetTotalCharge(som);

            Assert.AreEqual(-1.0, charge, 0.000001);
        }